Animal Physiology

Learn about the fundamental properties of electroretinograms of various arthropods, such as field-caught insects and spiders. Record the visual responses of an arthropod to various pulse durations and wavelengths of light.

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Artificial Axon Model

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Build an artificial neuron to demonstrate and explain passive nerve properties. Understand shapes of extracellular signals recorded by EMG or action potentials in frog sciatic nerve.

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Cockroach Sensory Nerve

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Stimulate cockroach sensory nerve spines and record evoked action potentials. Compare spontaneous and evoked action potentials. Assess the influence of the angle of deflection on action potential size and frequency. Demonstrate adaptation of sensory neurons during prolonged stimulation.

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Cockroach Ventral Nerve Cord

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Record extracellular action potentials from the ventral nerve cord of a large cockroach. Apply various different stimuli to the cerci and observe the electrical response. Measure the travel-time of an action potential and calculate nerve conduction velocity.

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Crayfish Extracellular Nerve Recording

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Explore the basic principles of extracellular nerve recording. Dissect a crayfish tail to set up stretch receptor and motor nerve analysis.

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Crayfish Postsynaptic Potential Recording

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Investigate neuromuscular interaction by simultaneously recording the extracellular activity from a muscle fiber and it's innervating nerve.

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Earthworm Action Potentials

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Obtain extracellular recordings of action potentials from an anesthetized earthworm (Lumbricus spp). Complete five exercises to examine and demonstrate threshold potential, recruitment, all-or-none response, refractory period, bidrectionality of impulse and conduction velocity of the nerve.

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Earthworm Smooth Muscle

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Observe the pattern of baseline movements in an organ bath preparation of isolated earthworm gut. Apply various manipulations and discover the effects of neurotransmitters, extracellular ions and temperature on contraction rate and strength.

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Efish JAR

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Measure the response of a weakly electric fish, the Black Ghost Knifefish, to a frequency which simulates the introduction of a second fish.

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Frog Heart

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Dissect a double-pithed frog and set up ECG analysis of frog heart. Manipulate temperature, tension, and pharmacological parameters to observe their effect on the ECG. Learn about Starling's law of the heart, refractory period and vagal escape.

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Frog Nerve and Muscle

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Construct and calibrate a nerve bath setup in order to measure compound action potentials from an isolated frog sciatic nerve. Explore basic nerve physiological properties such as threshold, refractory period and conduction velocity.

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Frog Nerve Compound Action Potentials

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Mount a dissected frog gastrocnemius muscle and sciatic nerve to investigate the physiological relationship between the two. Research the principles of twitch recruitment, muscle fatigue and the neuromuscular junction using the muscle relaxant, tubocurarine.

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Frog Skeletal Muscle

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Investigate the physiological properties of skeletal muscle using the isolated amphibian gastrocnemius. Examine the properties of the single twitch, graded response and relationship between muscle length and tension as well as tetanus and muscle fatigue.

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Intracellular Recordings

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Explore the basic principles of intracellular recording from several excitable cell types including a muscle fiber, neuron and alga cell.

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Introduction to LabChart

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Learn the basics of the PowerLab Data Acquisition System and LabChart software.

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Rat Cardiovascular Physiology Analysis

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Playback and analyze pre-recorded data from experiments involving cardiovascular manipulation of rats. Gain an understanding of the neural control of cardiovascular function.

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